While most of these circuits may interface directly to the RPi, the use of a buffered interface (such as the one supplied by the [[RPi Gertboard | Gertboard]]) is recommended which will help protect against damage. Alternatively, experiment with one of the [[RPi Tutorial Easy GPIO Hardware & Software#Alternative Test Platforms | Alternative Test Platforms]].

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'''Extreme caution should be exercised when interfacing hardware at a low level, you may damage your RPi, your equipment and potentially yourself and others. Doing so is at your own risk!'''

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==Aims==

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Note:

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Until RPi devices are available, I can not confirm this will work on a real RPi.

Warnings

While most of these circuits may interface directly to the RPi, the use of a buffered interface (such as the one supplied by the Gertboard) is recommended which will help protect against damage. Alternatively, experiment with one of the Alternative Test Platforms.

Extreme caution should be exercised when interfacing hardware at a low level, you may damage your RPi, your equipment and potentially yourself and others. Doing so is at your own risk!

Aims

Note:
Until RPi devices are available, I can not confirm this will work on a real RPi.
For now, I shall be using the TI LaunchPad (see Alternative Test Platforms
for details) to test the hardware on (as it is cheap and the logic levels similar).

The Hardware

Theory

Circuit

The Software

While the RPi is not available, I can only confirm the TI LaunchPad code works for me.

TI LaunchPad

The specifics and background behind the code is detailed very well on the following sites: